Thanks for the response. The erratic behaviour appears to be a combination of motor current, step velocity and stop/start delays.
I read the documentation again.......... A lot of fiddling and it is now sitting there repeatedly performing the same step count. This stability lets me look at the issue of number of steps per 360 degrees. The motor has 50 steps/rev (7.2 degrees/step) . In the step config process Leadscrew pitch = 1.00mm Steps/rev = 50; Microstep = 1:1, (driver pwb also set to 1:1) Therefore I would expect 50 steps to move the motor shaft 1 rev for a jog step of 1.00MM. But no! I need to have a jog step of 4.00MM to get the motor to move 1 rev. I will chase further. Ian ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
